Process of treating bagasse fibers preparatory to pulp board making



caustic solution.

Patented atan. lit W28 stares PROCESS OF TREATING JBAGASSE FIBERS PREPABATORY T0 PULP BOARD u I i No Drawing". Application filed April 13, 1927, Serial No. 183,627, and in Australia JuIy 16, 1926.

lhis invention is for an improved process of treating bagasse, a by-product of sugar mills, and similar products, to prepare the ing lon fibers I reserve the lon fibers.

. r: P e

as they come from the mill. Firstly I place the hagasse into large open vats. When boiling point is reached I mix with the mass with mechanical stirrer-s or mixers.

Jitter boiling With the caustic soda about an hour the pulp is run between one or more sets of tension rollers which loosens. the pith from the fibers.

liy again boiling the pulp, after the roll- The vats are provided ing, for about an hour the pith separates itself from the fibers and the fibers are in a. condition ready for the next treatment.

The essential features of this invention are the boiling, and subsequent addition of caustic soda during .boilin to loosen the pith, the rolling instead of grinding as is usual, and the final boil to. separate the pith from the fibers, which results in the cellulosie material being of even texture, the

pith being preserved through not being HERBERT THEODORE PRICE. 

